The area of an equilateral triangle is 1...

The area of an equilateral triangle is `1732. 05\ c m^2` . About each angular point as centre, a circle is described with radius equal to half the length of the side of the triangle. Find the area of the triangle not included in the circles. `(U s e\ \ pi=3. 14)` .

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`1620.5cm^2`

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